I notice that this problem did not happen in Turbotax 2024 or earlier. The 4.b.1.a field is left blank since I did not itemize. This year I itemized and it populates a 0 which causes errors for field 4.b.1.b and 4.b.1.c
Can't you default the fields (b,c) to a 0 and a 1 when the amount for Part I, 4.b.1.a is 0?
